Jabra is a wholly-owned subsidiary of GN Netcom A/S, a global hands-free mobile technology company, and is also one of the earliest brands to set foot in the field of Bluetooth wireless technology.
Jabra Elite 8 Active is a new generation of "rugged" true wireless sports earbuds that support IP68 waterproof and dustproof, and have passed military testing and certification. In terms of sound quality, it is equipped with a 6mm titanium-plated dynamic driver, which supports Dolby sound and provides more shocking immersive surround sound.
In terms of noise reduction, it supports adaptive doubly-fed noise reduction, which is 1.6 times more effective than the previous generation, and supports intelligent wind noise balance technology, which is automatically enabled when excessive external wind noise is detected to suppress wind noise interference. It supports 6-microphone call noise reduction, based on doubly-fed noise reduction technology and directional ultra-clear microphone reception, providing clear call effect. In terms of battery life, noise reduction is turned off, and it supports a single 14-hour and a comprehensive ultra-long battery life of 56h; It also supports ultra-fast charging and wireless charging functions. Let's take a look at the detailed teardown report of this product~
一、Jabra捷波朗Elite 8 Active真无线降噪耳机开箱
The Jabra Elite 8 Active True Wireless Noise Cancelling Earbuds box adopts a family-style design style, with the brand logo, product name, and the appearance of the earbuds displayed on the front of the outer envelope, and at the same time, it is designed with stones to highlight the "three-proof" attributes.
The back of the case shows the overall design of the product, as well as three features: fully dustproof and waterproof (IP68) and charging case (IP64) with a secure fit in Jabra Shake Grip skin-friendly liquid silicone and adaptive hybrid active noise cancellation.
The side of the box details the features of Adaptive Hybrid Active Noise Cancellation, which can also be adjusted even in windy environments.
The FSC forest certification is printed on the other side of the box.
The contents of the box include earphones, charging case, earbuds, charging cable, instruction manual and warranty card.
Two pairs of silicone ear tips are included, and one pair is pre-installed on the earphones, a total of three sizes to meet the needs of different users.
充电线采用了与耳机相同配色，USB-A to USB-C接口。
The Jabra Elite 8 Active charging case features a new rounded design with a matte finish. The front is engraved with the "Jabra" brand logo and has a charging indicator.
A glance at the back of the charging case.
A Type-C charging port is set at the bottom of the charging case.
Open the lid of the charging case, and the placement status of the internal earbuds will be listed at a glance, and the magnetic attachment will be fixed.
Take out the earphones, the internal structure of the cockpit is at a glance, and the cockpit is made of soft silicone material, which can well protect the earphones, prevent scratches, and reduce fall damage.
Close-up of metal thimble charging headphones.
A close-up of the indicator light in the middle of the cockpit to feedback the charging status of the headphones.
The Jabra Elite 8 Active True Wireless Noise Cancelling Headphones have a family of teardrop-shaped earbuds that are very compact and comfortable to wear.
The exterior of the Jabra Elite 8 Active earbuds is fully wrapped with a skin-friendly liquid silicone coating to increase grip and provide a soft and comfortable fit. In the middle, there is a physical button at the "Jabra" brand logo for various functions to control.
Close-up of the feed-forward noise-cancelling microphone pickup hole on the top of the headphones, protected by a metal grille.
Close-up of the call microphone pickup hole on the bottom of the headset.
The inside of the earbuds has a glance at a glance, and the left and right logos of L/R are engraved on the body for easy user identification.
Metal contacts and in-ear detection sensors to charge the headphones.
Close-up of the cavity tuning hole for air circulation.
Close-up of the earphone mouthpiece, the sound outlet tube is relatively narrow and long, deep into the ear canal when worn, and a feedback noise reduction microphone is also set inside to detect internal noise and the noise reduction effect of the Qiankui microphone.
According to the actual measurement of the Jabra Elite 8 Active True Wireless Noise Cancelling Headphones, the overall weight of the Jabra Elite 8 Active True Wireless Noise Cancelling Headphones is about 56.6g.
The weight of a single earbud is about 5.1g.
我爱音频网采用CHARGERLAB POWER-Z KM003C对Jabra捷波朗Elite 8 Active真无线降噪耳机进行充电测试,输入功率约为2.44W。
二、Jabra捷波朗Elite 8 Active真无线降噪耳机拆解
Through unboxing, we learned in detail about the lightweight and comfortable design of Jabra Elite 8 Active True Wireless Noise Cancelling Earphones, and let's go into the disassembly to see the internal structure configuration information~
Disassemble the charging case
Take out the silicone cockpit structure.
The inside of the cockpit is equipped with 5 magnets for attaching and fixing the earbuds and the lid of the charging case. The edge of the cabin is glued and sealed to improve waterproofing.
An overview of the internal structure of the cavity, with all components secured by screws and frames.
Remove the screws and remove the frame and all components.
An overview of the internal structure of the cavity.
The top structure of the frame is at a glance, and a small board and Hall element for charging the earbuds and an indicator light cable are arranged; The battery cell is set inside the frame to play a good protective role.
The motherboard unit is fixed at the bottom of the frame, and the Type-C charging socket is protected by a rubber cover.
An overview of the wiring structure on the front of the frame.
A wireless charging receiving coil is set on the back of the frame.
Remove the motherboard, battery, and small board for charging the headphones.
A list of circuits on one side of the motherboard of the charging case.
A glance at the circuit on the other side of the motherboard of the charging case, soldered to the battery and the wires of the wireless charging receiving coil.
Close-up of the Type-C charging socket, the bottom is glued to enhance and fix.
Close-up of the ZIF connector of the motherboard connection cable.
The NuVolta NU1680 is a small, highly integrated wireless power receiver with an integrated synchronous rectifier that eliminates the need for external bootstrap capacitors, providing high efficiency and low cost. It is available in a wide range of voltages from 3.5V to 9V for different applications. And the output voltage can be adjusted to track the battery voltage, reducing the power consumption of the charging system.
Volta NU1680 can communicate with the transmitter system through ASK, the communication conforms to WPC V1.2.4, the FOD parameters can be configured through the I2C interface or external resistors, the NU1680 also supports the I2C interface for communication, and provides external interrupts, battery voltage ADC values, output currents, etc. The NU1680 also supports standard protection features such as over-current protection, short-circuit protection, over-voltage protection, and thermal shutdown.
According to the dismantling of the audio network, there are currently Xiaomi, OPPO, Redmi, OnePlus, FIIL, Greenlink, Shengzhi, TOZO, Baseus, FiiO, HAKII, QCY, Lenovo, ZMI, UiiSii Yunshi and other brands of audio products using Volta wireless charging receiving chip.
NuVolta伏达NU1680详细资料图。
Chipsea CS32F035 microcontrollers use high-performance 32-bit ARM Cortex-M0 cores embedded with up to 32Kbytes flash and 4Kbytes SRAM, and operate at up to 48MHz. The CS32F035/F036 series covers a wide range of products from 20 feet to 32 feet. The chip provides standard communication interfaces (I2C, SPI, and USART), one 12-bit ADC, five 16-bit timers, and one enhanced control PWM timer. The operating temperature range is -40°C~85/105°C, and the operating voltage range is 2V~5.5V.
Chipsea CS32F035 detailed data map. According to the dismantling of I love audio network, there are currently vivo, Honor, iQOO, OnePlus, Edifier, Nothing, GravaStar, Gravity Planet, final, Songtuo, JBL, Huami, Redmi, Greenlink, Zimi, Philips, Wanmo and other brands of TWS earphones have adopted the solutions of Xinhai Technology.
Siyuan Semiconductor's SY8803 Bluetooth headset smart charging bin solution is a single-chip solution designed for Bluetooth headset bin. The chip integrates a charging module and a discharge module, and the charging current and discharge cut-off current can be adjusted externally. The chip integrates a standard I2C interface and interrupt signal to facilitate communication between the chip and the MCU. At the same time, the chip also provides load detection and load insertion identification.
SY8803 is very suitable for the design of Bluetooth headset bin, greatly simplifying the peripheral circuits and components, and providing a simple and easy-to-use solution for the application of Bluetooth headset bin. The SY8803 is available in a QFN16 package.
思远半导体SY8803详细资料图。 据我爱音频网拆解了解到,,思远半导体的电源管理类芯片目前已被Zdeer、一加、小米、OPPO、Redmi、iQOO、漫步者、联想、传音、倍思、科大讯飞、用维、公牛、小天才、Cleer、Fiio、JadeAudio翡声、MEES、YOBYBO、HAYLOU、DENON天 龙、Oladance、Nothing、XTOUR、final、酷睿视、Skullcandy、vivo、QCY、猛玛、声阔、绿联、Nothing、realme、魅族、百度、网易、JBL、哈曼、联想、万魔、233621、传音、魔宴、创新科技等国内外知名品牌采用。
Close-up of the boost inductor that works with the power management chip to boost the charge of the headphones.
Silkscreen printing of AM GK's IC.
A glance at the circuit on the side of the board that charges the earbuds, soldered to the motherboard cable.
A glance at the circuit on the other side of the board that charges the earbuds.
Close-up of the Pogo Pin connector for charging the earbuds in the charging case.
Close-up of LED beads corresponding to the indicators on the cockpit.
The Hall element of the silkscreen 8891J is used to sense the change of the magnetic field in the state of the charging case opening and closing cover, and then notify the charging case MCU and earbuds to pair or disconnect from the connected device.
Close-up of the LED indicator on the shell of the corresponding charging case.
The built-in lithium battery in the charging case is wrapped and protected by high temperature insulating tape, battery model: VDL 731646PN3, nominal voltage: 3.8V, rated capacity: 680mAh 2.58Wh, from VDL Zijian Electronics.
Tear off the insulation protection, a list of circuits on one side of the battery protection board, a lithium battery protection IC and MOS tube, and a thermistor to detect the temperature of the battery.
Close-up of the back of the battery protection plate.
The screen printing 3WA AL1C lithium battery protection IC is responsible for the protection of overcharge, overdischarge, and overcurrent of the battery. The left MOS tube, protected by black rigid glue.
Headset disassembly
Remove the liquid silicone earphone sleeve and have an LDS laser antenna printed on the back cover of the earphones.
Remove the back cover.
The inner structure of the cover plate is at a glance, and the upper and lower microphone pickup holes are protected by dust filters.
The internal structure of the cavity is at a glance, the battery and the motherboard unit are fixed by the bracket, and the motherboard and the cable are connected through the BTB connector.
Pick the connector and take out the motherboard.
The top of the bracket is fixed with a buckle, and the two sides of the motherboard are welded with the positive and negative nickel sheets of the battery.
The pouch battery is fixed inside the bracket to provide good protection.
Separate the motherboard and battery cells.
Earbuds built-in pouch battery model: 1255H, nominal voltage: 3.85V, rated capacity: 70mAh 0.27Wh.
Silk screen printed QR code on the back of the battery for product traceability.
A list of circuits on the side of the headset motherboard.
A glance at the circuit on the other side of the headphone motherboard.
Close-up of a metal shrapnel connected to a Bluetooth antenna.
Close-up of micro-action buttons for function control.
Silk screen 2b HQ all-in-one lithium battery protection IC.
The BTB connector socket connecting the speaker cable is from OCN, model: OK-114GF016-35.
Silkscreen E63F IC.
Silkscreen printing of the IC of ASN.
Close-up of the MEMS microphone of Leidiang MF17 D154, which is a call microphone for voice call function pickup, from Minxin Microelectronics.
Silkscreen printed C2DC IC.
AIROHA AB1585 Bluetooth audio SoC with LE Audio and Bluetooth 5.3 support, integrated ARM Cortex-M33F application processor, HiFi 5 DSP, Bluetooth transceiver and power management unit (PMU); It supports hybrid active noise cancellation (ANC), next-generation echo cancellation, and AI noise reduction solutions to improve the audio quality of voice calls of headset products. Airoha MCSync technology is supported, allowing the earbuds to seamlessly switch between the left and right earbuds for more balanced sound and low latency.
Close-up of the peripheral inductor of a Bluetooth chip, powering its internal circuitry.
Close-up of the 26.0MHz crystal oscillator, which provides the clock for the Bluetooth chip.
Another close-up of the MEMS microphone of the Radium MF17 D154 is a feedforward noise-canceling microphone used to pick up external environmental noise, from Minxin Microelectronics.
The internal structure of the front chamber is at a glance, and the cable is fixed by a metal cover.
Remove the internal cable of the front chamber.
Close-up of the charging contacts below the cable, the in-ear detection sensor window, and two magnets.
A list of circuits on one side of the cable inside the front cavity.
A list of circuits on the other side of the cable.
Close-up of the male seat of the BTB connector connected to the motherboard by OCN, model: OK-114GM016-35.
Close-up of the front of the headphone speaker, protected by a metal mesh. According to the official introduction, a new composite material dynamic coil is adopted, and the volume enhancement technology of small speakers is used to burst out stronger music energy.
Close-up of the back of the speaker.
Speaker vs. one-dollar coin size.
According to the actual measurement of I love audio network, the size of the speaker is about 6mm.
Close-up of a capacitive in-ear detection sensor for picking up and automatically pausing music playback and wearing the auto-resume playback function.
Close-up of the optical in-ear detection sensor, the combination of the two sensors provides a more accurate monitoring effect.
Close-up of the metal shrapnel connecting the charging contacts.
Close-up of the MEMS microphone of the Radium MF09 D112 is a feed-back noise-canceling microphone and a feed-forward noise-canceling microphone to provide a better noise reduction effect.
Jabra捷波朗Elite 8 Active真无线降噪耳机拆解全家福。
3. I love the audio network summary
Jabra Elite 8 Active True Wireless Noise Cancelling Headphones continue the family-style design style in terms of appearance, and have a high brand identity. The charging case adopts a new upper and lower circle design, and the unique silicone cockpit inside protects the earbuds, prevents scratches, and reduces drop damage; The earbuds are designed with drop-shaped ear wings, which are compact in size and fully wrapped with skin-friendly liquid silicone coating, making them comfortable and stable to wear.
In terms of internal circuitry, the charging case has a built-in 680mAh lithium battery, which supports wired and wireless input power. Wired adopts the Type-C interface, integrates the charging module and the discharge module of Siyuan Semiconductor's SY8803 intelligent charging bin solution; The wireless uses NuVolta Volta NU1680 wireless power receiver; It is also equipped with a Chipsea CS32F035 microcontroller for the control of the charging case.
The earbuds are equipped with a 70mAh soft-pack button battery, a 6mm titanium-plated diaphragm dynamic speaker, and three MEMS microphones with Minxin Microelectronics built into each ear for voice calls, noise reduction and other functions. The main control chip is AIROHA AB1585 Bluetooth audio SoC, which supports LE Audio and Bluetooth 5.3, and supports hybrid active noise cancellation (ANC), next-generation echo cancellation and AI noise reduction solutions to support various functions of the headphones.